RM120 is a bit steep for price..... I have to say that.
Even my GHS Zakk Wylde Signatures cost about 55 a pack.......

And FYI, you CAN buy single strings (or Loose strings) if you ask.

Maybe you should try out Elixirs...... VERY expensive, (about RM60-70), but they last you a long time as they are anti-rust.